Fatal error: Uncaught Error: Class 'Symfony\Contracts\EventDispatcher\Event' not found in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/FixerFileProcessedEvent.php:26 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/FixerFileProcessedEvent.php on line 26